From owner-svn-src-stable@FreeBSD.ORG Thu Oct 24 15:21:21 2013 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 51EC29A7; Thu, 24 Oct 2013 15:21:21 +0000 (UTC) (envelope-from smh@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 3E40A2538; Thu, 24 Oct 2013 15:21:21 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r9OFLLfb020323; Thu, 24 Oct 2013 15:21:21 GMT (envelope-from smh@svn.freebsd.org) Received: (from smh@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r9OFLLYW020322; Thu, 24 Oct 2013 15:21:21 GMT (envelope-from smh@svn.freebsd.org) Message-Id: <201310241521.r9OFLLYW020322@svn.freebsd.org> From: Steven Hartland Date: Thu, 24 Oct 2013 15:21:21 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r257058 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Oct 2013 15:21:21 -0000 Author: smh Date: Thu Oct 24 15:21:20 2013 New Revision: 257058 URL: http://svnweb.freebsd.org/changeset/base/257058 Log: MFC r256889: Use the vdev's ashift to calculate the supported min block size passed to zio_compress_data(..) when compressing l2arc buffers. This eliminates L2ARC I/O errors, which resulted in very poor performance on vdev's configured with block size greater than 512b due to compression assuming a smaller min block size than the vdev supports. Approved by: re (glebius) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Directory Properties: stable/10/sys/ (props changed) stable/10/sys/cddl/contrib/opensolaris/ (props changed) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c ============================================================================== --- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Thu Oct 24 15:11:30 2013 (r257057) +++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Thu Oct 24 15:21:20 2013 (r257058) @@ -5147,7 +5147,7 @@ l2arc_compress_buf(l2arc_buf_hdr_t *l2hd len = l2hdr->b_asize; cdata = zio_data_buf_alloc(len); csize = zio_compress_data(ZIO_COMPRESS_LZ4, l2hdr->b_tmp_cdata, - cdata, l2hdr->b_asize, (size_t)SPA_MINBLOCKSIZE); + cdata, l2hdr->b_asize, (size_t)(1ULL << l2hdr->b_dev->l2ad_vdev->vdev_ashift)); if (csize == 0) { /* zero block, indicate that there's nothing to write */